C++ Exchange Connectivity Engineer - Algorithmic Execution Services – London – Up to £200k base

A leading FinTech specializing in algorithmic execution for digital asset markets is seeking a C++ Engineer to join the Core Engineering team in London. You’ll design, build, and optimize the connectivity layer that links our trading systems to global exchanges.

The company combines low-latency infrastructure, quantitative research, and machine learning to deliver fast, reliable, and transparent trading solutions

Key Responsibilities

• Develop and maintain low-latency exchange gateways (crypto & traditional).
• Optimize system performance, network I/O, and message handling.
• Monitor and profile latency; resolve performance bottlenecks.
• Build internal tools for diagnostics and real-time monitoring.
• Collaborate with trading, research, and infrastructure teams.
• Contribute to team growth through hiring and mentoring.

Requirements:

• BSc/MSc in Computer Science or related field.
• 5–10 years' experience in performance-critical C++ systems.
• Strong Linux and systems-level programming skills.
• In-depth knowledge of TCP/UDP, multicast, and low-latency design.
• Python or Shell scripting experience a plus.
• Familiarity with exchange APIs (FIX, WebSocket, REST) preferred.
• Financial/crypto market experience a bonus.
• English fluency required; Mandarin is a plus.